Modern IPM motors, suited to large constant-power speed ranges, have a multiple flux-barrier rotor structure and show a quite complex magnetic behaviour. In this paper the flux-current relationship of such motors is analysed and a simplified but effective model of the cross-saturation phenomenon is proposed and verified by experiment. In addition, new flux variables are introduced, that allow a rigorous splitting of PM and reluctance torques. It is shown that the PM contribution to torque is larger than expected from the PM no-load flux. This can lead to more accurate machine design and control strategies.

Accurate magnetic modelling and performance analysis of IPM-PMASR motors / Armando, Eric Giacomo; Guglielmi, Paolo; Pellegrino, GIAN - MARIO LUIGI; Pastorelli, MICHELE ANGELO; Vagati, Alfredo. - In: IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS. - ISSN 0093-9994. - STAMPA. - 45:1(2009), pp. 123-130. [10.1109/TIA.2008.2009493]

Accurate magnetic modelling and performance analysis of IPM-PMASR motors

ARMANDO, Eric Giacomo;GUGLIELMI, Paolo;PELLEGRINO, GIAN - MARIO LUIGI;PASTORELLI, MICHELE ANGELO;VAGATI, Alfredo
2009

Abstract

Modern IPM motors, suited to large constant-power speed ranges, have a multiple flux-barrier rotor structure and show a quite complex magnetic behaviour. In this paper the flux-current relationship of such motors is analysed and a simplified but effective model of the cross-saturation phenomenon is proposed and verified by experiment. In addition, new flux variables are introduced, that allow a rigorous splitting of PM and reluctance torques. It is shown that the PM contribution to torque is larger than expected from the PM no-load flux. This can lead to more accurate machine design and control strategies.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/1795463
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